Question
Answer
$$\sqrt{75}\cdot2\sqrt{18}=30\sqrt{6}$$
Explanation
| $$ \begin{aligned}\sqrt{75}\cdot2\sqrt{18}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}30\sqrt{6}\end{aligned} $$ | |
| ① | $$ 2 \sqrt{1350} =
2 \sqrt{ 15 ^2 \cdot 6 } =
2 \sqrt{ 15 ^2 } \, \sqrt{ 6 } =
2 \cdot 15 \sqrt{ 6 } =
30 \sqrt{ 6 } $$ |
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